Problem #PRU-5029

Problems Mathematical logic

Problem

In the second room, there are two doors. Both statements on them say:

  1. There is a treasure behind both doors.

  2. There is a treasure behind both doors.

Your guide says: The first sign is true if there is treasure behind the first door, otherwise it is false. The second sign is false if there is treasure behind the second door, otherwise it is true. What do you do?